One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,7,8,6)(9,10)(11,13)(12,14)(15,16)(17,18,21,23)(19,24,22,20)(27,31)(30,32)(1,3,5,8)(2,6,4,7)(9,10,12,14)(11,13,15,16)(17,19)(18,20)(21,22)(23,24)(2,4)(6,7)(11,15)(13,16)(19,22)(20,24)(25,26,29,28)(27,30,31,32)(1,4,5,2)(3,6,8,7)(9,11,12,15)(10,13,14,16)(17,20,21,24)(18,22,23,19)(25,27)(26,30)(28,32)(29,31)(1,3)(2,7)(4,6)(5,8)(9,10)(11,13)(12,14)(15,16)(17,18)(19,24)(20,22)(21,23)(25,28,29,26)(27,32,31,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.